code: def test_default_creation(self):
      try:
          assert self.a_parser.parse_args(["-V"]).show_version
      except SystemExit:
          url = "https://bugs.python.org/issue9253"
          self.skipTest(
              "subcommand became optional in py3, see %s" % url
          )
  
file_path: aubio/python/tests/test_aubio_cmd.py
imports: from numpy.testing import TestCase
  import aubio.cmd
label_desc: Use image node_id 2 for calling the aubio_cmd obj's underlying member method code with example usage: obj.test_default_creation() without return types